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Disorders of Erythrocytes01:27

Disorders of Erythrocytes

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Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
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Lesson: Translation
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Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
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Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
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A Precision Medicine Tool for Measurement and Monitoring of Hemoglobin S in Sickle Cell Disease Patients Receiving Transfusion Therapy
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Thalassaemia.

Ali T Taher1, David J Weatherall2, Maria Domenica Cappellini3

  • 1Department of Internal Medicine, American University of Beirut Medical Centre, Beirut, Lebanon.

Lancet (London, England)
|August 5, 2017
PubMed
Summary
This summary is machine-generated.

Inherited blood disorders like thalassaemia and sickle-cell disease are common genetic conditions. Research explores new therapies targeting underlying causes such as chain imbalance and iron overload.

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Area of Science:

  • Hematology
  • Genetics
  • Molecular Biology

Background:

  • Inherited hemoglobin disorders, including thalassaemia and sickle-cell disease, are globally prevalent monogenic conditions.
  • These disorders manifest with imbalanced globin chain ratios, ineffective erythropoiesis, chronic hemolytic anemia, and iron overload complications.
  • Current management involves transfusions, iron chelation, and splenectomy, with ongoing research for novel treatments.

Purpose of the Study:

  • To review the pathophysiology of inherited hemoglobin disorders.
  • To discuss current management strategies.
  • To highlight emerging therapeutic approaches targeting molecular and pathogenic factors.

Main Methods:

  • Literature review of inherited hemoglobin disorders.
  • Analysis of pathophysiological mechanisms.
  • Evaluation of current and novel therapeutic strategies.

Main Results:

  • Inherited hemoglobin disorders present complex pathophysiology including globin chain imbalance and iron overload.
  • Conventional treatments like transfusions and chelation are standard but have limitations.
  • New therapeutic avenues are being explored to address underlying disease mechanisms.

Conclusions:

  • Understanding the molecular basis of hemoglobin disorders is crucial for developing targeted therapies.
  • Novel treatments aim to correct chain imbalance, improve erythropoiesis, and manage iron dysregulation.
  • Ongoing research holds promise for improved patient outcomes in inherited hemoglobin disorders.